Protected combustion device

ABSTRACT

A protected combustion device includes a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall. The inner-layer wall and the outer-layer wall include a hollow disposed therebetween. The inner-layer wall forms a fuel receptacle with an opening. The outer-layer wall has an open end and the open end defines a hole. The hole is in communication with the hollow. The open end of the outer-layer wall forms a bottom side. A protection device is coupled to the main body. The protection device includes a through hole extending therethrough and communicating with the hollow. The protection device includes a slot extending along a periphery of the through hole and the bottom side is disposed in the slot.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a combustion device and, particularly, to a combustion device having.

2. Description of the Related Art

TW Pat. No. 1625493 shows a flame-display combination structure, which includes an accommodation device, a burning device, and a fixing device. The accommodation device includes a fuel container, a top a cover, and a heat insulating member. The fuel container defines a receiving portion ii disposed therein and connected to the top cover. The top cover defines a filler hole and a first positioning groove, which extend therethrough and communicate with the receiving portion. The heat insulating member is connected to an end of the top cover different from that to which the receiving portion is connected. The heat insulating member defines a second positioning groove extending therethrough, i.e., through the top side and the bottom side of the heat insulating member, and communicating with the first positioning groove. The burning device includes a second end inserted into the receiving portion through the second positioning groove and the first positioning groove. The burning device is sandwiched between a first clamping surface and a second clamping surface of the fixing device.

When the flame-display combination structure is in use for a long time, the upper of the fuel container and a shielding member that is disposed adjacent to the upper of the fuel container are high and higher than other regions of the combination structure, so heat conducts downwards and causes the fuel container to become hot and unsafe to hold.

The present invention is, therefore, intended to obviate or at least alleviate the problems encountered in the prior art.

SUMMARY OF THE INVENTION

According to the present invention, a protected combustion device includes a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall such that the inner-layer wall and the outer-layer wall include a hollow disposed therebetween. The inner-layer wall forms a fuel receptacle with an opening. The outer-layer wall has an open end and the open end defines a hole. The hole is in communication with the hollow. The open end of the outer-layer wall forms a bottom side. Further, a protection device is coupled to the main body. The protection device includes a through hole extending therethrough and communicating with the hollow. The protection device includes a slot extending along a periphery of the through hole and the bottom side is disposed in the slot.

There has thus been outlined, rather broadly, the more important features of the invention in order that the detailed description thereof that follows may be better understood, and in order that the present contribution to the art may be better appreciated. There are additional features of the invention that will be described hereinafter and which will form the subject matter of the claims appended hereto.

In this respect, before explaining at least one embodiment of the invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and to the arrangements of the components set forth in the following description or illustrated in the drawings. The invention is capable of other embodiments and of being practiced and carried out in various ways. Also, it is to be understood that the phraseology and terminology employed herein are for the purpose of description and should not be regarded as limiting.

As such, those skilled in the art will appreciate that the conception, upon which this disclosure is based, may readily be utilized as a basis for the designing other structures, methods and systems for carrying out the several purposes of the present invention. It is important, therefore, that the claims be regarded as including such equivalent constructions insofar as they do not depart from the spirit and scope of the present invention.

Further, the purpose of the foregoing abstract is to enable the public generally, and especially the scientists, engineers and practitioners in the art who are not familiar with patent or legal terms or phraseology, to determine quickly from a cursory inspection the nature and essence of the technical disclosure. The abstract is neither intended to define the invention, which is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.

Other objectives, advantages, and new features of the present invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanied drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of a protected combustion device in accordance with the present invention.

FIG. 2 is an exploded perspective view of the protected combustion device of FIG. 1.

FIG. 3 is a cross-sectional view of the protected combustion device of

FIG. 4 is a partial, enlarged cross-sectional view of the protected combustion device of FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

FIGS. 1 through 3 show a combustion device 10 having a double-layer structure in accordance with a first embodiment of the present invention.

The combustion device 10 includes a main body 20, which is double layered. The main body 20 has an inner-layer wall 21 and an outer-layer wall 22 disposed outside of and spaced from the inner-layer wall 21 such that the inner-layer wall 21 and the outer-layer wall 22 include a hollow 23 disposed therebetween.

The inner-layer wall 21 forms a fuel receptacle 211 with an opening 212. The main body 20 has a receiving portion 213 formed by the inner-layer wall 21 and the fuel receptacle 211 is delimited by the receiving portion 213. The inner-layer wall 21 is made from a transparent material. The inner-layer wall 21 is in a form of a cylinder.

The main body 20 has an interconnecting portion 214 interconnecting the inner-layer wall 21 and the outer-layer wall 22. The interconnecting portion 214 extends from an outer periphery of the inner-layer wall 21 to the inner periphery of the outer-layer wall 22. The interconnecting portion 214 extends from a transversely extending portion of the outer periphery of the inner-layer wall 21 to a transversely extending portion 223 of the outer-layer wall 22. The interconnecting portion 214 is hollow.

The outer-layer wall 22 has an end forming an open end and the open end defines a hole 24. The hole 24 is in communication with the hollow 23. The open end of the outer-layer wall 22 forms a bottom side 221. The outer-layer wall 22 includes the bottom side 221 extending radially outwards from its inner periphery to its outer periphery. The outer-layer wall 22 is made from a transparent material. The outer-layer wall 22 is in a form of a cylinder 222. The outer-layer wall 22 has a center disposed coaxially with a center of the inner-layer wall 21.

The combustion device 10 includes a wick 25 inserted through a hollow of the interconnecting portion 214. The wick 25 is also inserted through the opening 212 into the receiving portion 213. The wick 25 is metallic because it is made from metal. The wick 25 has an end disposed in the fuel receptacle 211 and another end disposed outside of the main body 20. The end of the wick 25 that is disposed in the fuel receptacle 211 is visible because the inner-layer wall 21 and the outer-layer wall 22 are made from a transparent material as set forth.

The combustion device 10 includes a retaining device 26 configured to keep the wick 25 in place. The retaining device 26 includes an inner periphery in frictional contact with the wick 25 to securely hold the wick 25. The retaining device 26 is disposed in the interconnecting portion 214.

The retaining device 26 is in a form of a sleeve 261. The retaining device 26 includes at least one gasket 262 mounted thereon. The retaining device 26 has an outer periphery defining at least one groove 263 and the at least one gasket 262 is mounted in the at least one groove 263. The at least one gasket 262 abuts an inner periphery of the interconnecting portion 214.

The combustion device 10 includes a protection device 30 coupled to the main body 20. The protection device 30 is configured to prevent the main body 20 from being tipped over and to provide a heat insulation effect. The protection device 30 is releasably coupled to the main body 20.

The protection device 30 includes a through hole 31 extending therethrough and communicating with the hollow 23.

The protection device 30 includes a slot 32 extending along a periphery of the through hole 31. The bottom side 221 is disposed in the slot 32. The slot 32 and the bottom side 221 are in the same shape.

The protection device 30 has an outer peripheral portion 321 and an inner peripheral portion 322 and includes the slot 32 disposed between the outer peripheral portion 321 and the inner peripheral portion 322. The outer peripheral portion 321 includes a side delimiting a first lateral side 323 of the slot 32. The inner peripheral portion 322 includes a side delimiting a second lateral side 324 of the slot 32. The side of the outer peripheral portion 321 extends in a height direction of the protection device 30 higher than the side of the inner peripheral portion 322. The side of the outer peripheral portion 321 extends to an extent that is at a first height H1 with respect to a bottom side 33 of the protection device 30. The side of the inner peripheral portion 322 extending to an extent that is at a second height H2, which is shorter than the first height H1, with respect to the bottom side 33 of the protection device 30. The first and the second heights H1 and H2 are higher than a bottom side of the slot 32. The bottom side 33 of the protection device 30 is adapted to be stably supported by a floor.

In view of the foregoing, the protection device 30 prevents the main body 20 from being tipped over and provides a heat insulation effect. Further, the inner layer wall 21 and the outer-layer wall 22 include the hollow 23 therebetween, thus, heat emitted from the wick 25 will not render the outer-layer walls 22 too hot to hold.

The foregoing is merely illustrative of the principles of this invention and various modifications can be made by those skilled in the art without departing from the scope and spirit of the invention. 

What is claimed is:
 1. A protected combustion device having a double-layer structure comprising: a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall such that the inner-layer wall and the outer-layer wall include a hollow disposed therebetween, wherein the inner-layer wall forms a fuel receptacle with an opening, wherein the outer-layer wall has an open end and the open end defines a hole, wherein the hole is in communication with the hollow, and wherein the open end of the outer-layer wall forms a bottom side; and a protection device coupled to the main body, wherein the protection device includes a through hole extending therethrough and communicating with the hollow, wherein the protection device includes a slot extending along a periphery of the through hole and the bottom side is disposed in the slot.
 2. The protected combustion device as claimed in claim 1, wherein the protection device has an outer peripheral portion and an inner peripheral portion and includes the slot disposed between the outer peripheral portion and the inner peripheral portion, wherein the outer peripheral portion includes a side delimiting a first lateral side of the slot, wherein the inner peripheral portion includes a side delimiting a second lateral side of the slot, and wherein the side of the outer peripheral portion extends in a height direction of the protection device higher than the side of the inner peripheral portion, with the side of the outer peripheral portion extending to an extent that is at a first height with respect to a bottom side of the protection device, and with the side of the inner peripheral portion extending to an extent that is at a second height, which is shorter than the first height, with respect to the bottom side of the protection device.
 3. The protected combustion device as claimed in claim 2, wherein the first and the second heights are higher than a bottom side of the slot.
 4. The protected combustion device as claimed in claim 1, wherein the protection device is releasably coupled to the main body.
 5. The protected combustion device as claimed in claim 3, wherein the main body has a receiving portion formed by the inner-layer wall and the fuel receptacle is delimited by the receiving portion, wherein the main body has an interconnecting portion interconnecting the inner-layer wall and the outer-layer wall, wherein the interconnecting portion extends from an outer periphery of the inner-layer wall to the inner periphery of the outer-layer wall, and wherein the interconnecting portion is hollow.
 6. The protected combustion device as claimed in claim 5 further comprising a wick and a retaining device, wherein the wick is inserted through the interconnecting portion and has an end disposed in the fuel receptacle and another end disposed outside of the main body, wherein the retaining device includes an inner periphery in frictional contact with the wick to securely hold the wick, and wherein the retaining device is disposed in the interconnecting portion.
 7. The protected combustion device as claimed in claim 6, wherein the retaining device is in a form of a sleeve, wherein the retaining device includes at least one gasket mounted thereon, wherein the retaining device has an outer periphery defining at least one groove and the at least one gasket is mounted in the at least one groove, and wherein the at least one gasket abuts an inner periphery of the interconnecting portion.
 8. The protected combustion device as claimed in claim 7, wherein the inner-layer wall and the outer-layer wall are made from a transparent material.
 9. The protected combustion device as claimed in claim 8, wherein the wick is metallic.
 10. The protected combustion device as claimed in claim 1, wherein ii the bottom side and the slot are in the same shape.
 11. The protected combustion device as claimed in claim 1, wherein the outer-layer wall is in a form of a cylinder.
 12. The protected combustion device as claimed in claim 3, wherein the protection device is releasably coupled to the main body.
 13. The protected combustion device as claimed in claim 12, wherein the bottom side and the slot are in the same shape.
 14. The protected combustion device as claimed in claim 13, wherein the main body has a receiving portion formed by the inner-layer wall and the fuel receptacle is delimited by the receiving portion, wherein the main body has an interconnecting portion interconnecting the inner-layer wall and the outer-layer wall, wherein the interconnecting portion extends from an outer periphery of the inner-layer wall to the inner periphery of the outer-layer wall, and wherein the interconnecting portion is hollow.
 15. The protected combustion device as claimed in claim 14 further comprising a wick and a retaining device, wherein the wick is inserted through the interconnecting portion and has an end disposed in the fuel receptacle and another end disposed outside of the main body, wherein the retaining device includes an inner periphery in frictional contact with the wick to securely hold the wick, and wherein the retaining device is disposed in the interconnecting portion.
 16. The protected combustion device as claimed in claim 15, wherein the protection device is releasably coupled to the main body.
 17. The protected combustion device as claimed in claim 9, wherein the protection device is releasably coupled to the main body. 